Hirokazu Hayakawa

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mode field conversion fiber component
- Patent number 5,301,252
- Issue date Apr 5, 1994
- The Furukawa Electric Company, Ltd.
- Hisaharu Yanagawa
- G02 - OPTICS
Information Patent Grant
Thin film optical component for use in optical transmission lines a...
- Patent number 4,958,897
- Issue date Sep 25, 1990
- The Furukawa Electric Co., Ltd.
- Hisaharu Yanagawa
- G02 - OPTICS
Information Patent Grant
Multiple-fiber optical component and method for manufacturing of th...
- Patent number 4,900,118
- Issue date Feb 13, 1990
- Furukawa Electric Co., Ltd.
- Hisaharu Yanagawa
- G02 - OPTICS